Extensible window screen



April 5, 1938. PETERS ET AL 2,113,310

EXTENS IBLE WINDOW SCREEN Filed April 3, 1935 .M 4 ym J Patented Apr. 5, 1938 EXTENSIBLE wmnow SCREEN Oscar A. Peters, Phoenix, N. Y., and William H.

Maynard, Winooski,

Vt., assignors to Porter Screen Company, Winooski, Vt., a corporation of Vermont Application April 3,

1 Claim.

Our invention relates to window screens or ventilators and more particularly to an extensible metallic window screen. It also includes a novel process whereby such screens may be com- 6 mercially assembled together with apparatus by means of which the process may be practiced.

A screen' embodying our invention comprises two rectangular sections which are held in sliding back-to-back relationship by two or more metallic clips, so that the structure may be extended or collapsed to flt various sizes of windows and when not in use .may be collapsed for storage. Our invention relates particularly to improvements in the construction of the frames of the screen, the location of the clips for holding the screen sections in sliding relationship, the location of the clips with respect to the frames and the construction of the clips.

The principal object of our invention is to provide extensible metallic window screens or ventilators which are strong and durable and may be manufactured economically.

Further objects are to so locate the clips for holding the two sections of such a screen in sliding relationship that the sections may be fully extended and that in such fully extended position the screen structure as a whole may be strengthened and reinforced by the clips.

A further objectis to provide a construction of clip and screen frame for securely and economically attaching the clip to the screen frame.

The invention itself both as to structure of the product and method of its manufacture, together with additional objects and advantages thereof will best be understood from consideration of the following description and accompanying drawing which exemplify different embodiments of the product and an illustrative apparatus which may be used in the method of manufacture.

In the drawing:

Fig. l is a view in side elevation of one emb0di-.

ment of screen embodying our invention;

Fig. 2 is-an enlarged section, with parts broken away, taken on the lines 2-2 of Fig. 1;

Fig. 3 is an enlarged section, with parts broken away, taken on the lines 22 of Fig. 1 but with the screen sections in fully extended position;

' Fig. 4 is an enlarged section, with parts broken away, taken onthe lines 4-4 of Fig. 1;

Fig. 5 is an enlarged section, with parts broken away, taken on the lines 5-5 of- Fig. 2 and shown in isometric;

Fig. 6 is a sectional view, with parts broken away, similar to Fig. 5 but showing another em- 1935, Serial No. 14,444

bodiment of construction for securing the clip to the screen frame;

Fig. '7 is a sectional view with parts broken away similar to Fig. 6 but showing still another embodiment of construction for securing the 'clip to the screen frame.

In the embodiment herein shown for the purposes of illustration. the extensible window screen is comprised of two rectangular sections 20 and 2|, each section having opp sitely disposed fabricholding sheet metal frame elements, namely two .verticalframe elements 22, 22 and twohorizontal frame elements 23, 23. The inner ends of the horizontal frame elements extend beyond their intersections with the ends of the inner vertical frame elements to form four free extensions 25. The horizontal frame elements are provided on their outer edges with longitudinal flanges 24 which extend substantially at right angles to said horizontal frame elements in opposite directions, in the same plane when the two sections are placed back to back, as shown in Fig. 4.

In the embodiment shown in Figs. 1 to 4 inclusive, the two sections of the screen are held in sliding back-to-back relation by means of four metallic clips 26, one attached to each free extension 25. The clips 26 comprise a relatively flat main body portion 21 with offset inwardly bent portions 28 and 29, one on each longitudinal edge thereof, as shown in Fig. 4. The main body portion 21 of the clip is of sufficient width to overlie the two oppositely extending flanges 24, 24 when the sections are placed in back-toback position, and each offset portion is of sufficient size to loosely surround the free edge of the adjacent flange, thereby providing a space in which the flange may slide. The clips are attached to the extensions 25 by means of a projection 30 on the offset portion 29 which extends into a cavity 3| in the adjacent flange. The other offset portion 28 provides a guide space for the corresponding flange of the section to which said clip is not attached. The clips are made of substantially the same length as the extensions 25 and the abutting ends of the clips serve as a stop when the screen is in fully extended position, as shown in Fig. 3.

In operation the longitudinal flanges of the horizontal frame elements of each section slide within the offset portions 26 of the two clips attached to-the other section, thereby providing a screen which may be extended to flt various sized windows and may be collapsed for storage.

The free extensions 25 serve to strengthen the assembled structure since they provide reinforcement beyond the inner comers of the sections;

two sections each having horizontal and vertical frame members supporting a panel member, said horizontal frame membershaving lateral flanges which extend outwardly substantially at right.

angles to the panels, said sections being positioned back to back so that the lateral flanges carried by their respective horizontal frame.

members extend in opposite directions in sub- An article of the class described, comprising 7 stantially the same plane, the inner ends of the horizontal members of each section projecting an appreciable distance beyond the adjacent vertical frame member, and clips coextensive with and secured to the projecting inner ends of said horizontal frame members, said clips extending from the flanges of the horizontal frame members to which they are attached laterally about the corresponding flanges of the horizontal frame members of the other section, thereby to provide relatively slidable interlocking parts effective to support said sections for sliding movement from a collapsed to an extended position, the inner ends of said clips providing mutually engageable abutments adjacent the inner ends of each section and eifective to limit relative movement of said sections away from each other.

, OSCAR A. PETERS. 

